Boiler compound for removing scale



Patented it'llero 4, W24.

' UNHTE stares theatre career @FFHQE.

THOMAS BRUCE WRIGHT, 01F WINNIPEG, MANITOBA, CANADA; MARY JANE WRIGHT ADMINISTRATRIX OF SAID THOMAS BRUCE WRIGHT, DECEASED.

BOILER COMPOUND FOR REMOVING SCALE.

No Drawing.

To all whom it may concern:

Be it known that I, THOMAS BRUCE WRIGHT, subject of the King of Great Britain, residing at the city of Winnipeg, in the 5 Province of Manitoba, in the Dominion of .Canada, have invented certain new and useful Improvements in Boiler Com ounds for Removing Scale, of which the ollowing is a specification.

The object of the invention is the production of a compound with which the interior of a boiler and the surface of the tubes may be treated in.a novel manner, to remove any accumulation of scale or other foreign matter that may be present in the interior of the boiler.

My composition consists of a mixture of heavy hydrocarbon such as the black lubricating oil used on box cars and engines which forms the body of'the compound, a mineral scale solvent such as kerosene, and a vegetable purifying agent such as oil of turpentine.

In the preparation of thecomposition I prefer to use the ingredients in approximately the following proportions-that is to sayfive gallons of black engine lubricating oil, two and one half gallons of kerosene, and one half gallon of spirits or oil of turpentine.

These ingredients should be thoroughly mixed immediately before usingl' In applying the compound I prefer to fill the boller with cold water up to a point somewhat above the flues and then add the compound, which will naturally remain upon the top of the water. I then prefer to draw the water off very graduall under which procedure I have found that t e com- Application filed. October 21, 1921. Serial No. 509,398.

pound, will, due to the viscosity of the heavy 40 oil, in a manner, attach itself to the shell of the boiler, and following down as the level of the water falls, for a coating of the compound over the walls of the boiler and the tubes passing therethrough.

The heavy oil is of course the vehicle by which the lighter ingredients are conveyed to and maintained in contact with the surfaces of the boiler and tubes while their work is being done, the kerosene as a scale loosener and solvent, and the turpentine as a cleansing agent.

The boiler should remain unused for as long a period as possible, several weeks being not too long, the time required of course depending largely upon the condition of the boiler. The boiler may then be refilled and emptied to remove the loosened scale or it may be refilled and a portion of the contents blown off under pressure, this being repeated several times to ensure the removal of all foreign matter. The amount of the compound required in the treatment is approximately one fifth of one gallon to the horse power, but a slight deviation from this amount in either direc tion is immaterial under ordinary circumstances. Should the boiler be in very bad.

condition a larger amount of the compound to the horse power would of course prove 7 beneficial.

Having thus fully described my said invention, what I claim is A boiler compound comprising five gallons of heavy mineral lubricating oil, two and one half gallons of kerosene, and one half gallon of turpentine.

THOMAS BRUCE IGHT. 

